ruddy



NITE STATES PATENT EEICE.

ROBERT RUDDY, OF MOUNT VERNON, AND LEOPOLD KAOZANDER, OF NEW YYORK, ASSIGNORS TO THE NATHAN MANUFAOTURlNG COMPANY, OF

NEV YORK, N. Y.

INJECTOR..

SPECIPICATICN forming part of Letters Patent No. 387,599. dated August 7, 1888.

Application filed June 13, 1888. Serial No. 276.915.

To all whom t may concern:

Be it known that we, ROBERT BUDDY, of Mount Vernon, Vestchester county, New York, and LEOPOLD KAOZANDER, of the city,

county, and State of New York, have invented certain new and useful Improvements in Injectors, of which the following is a specification.

These improvements relate to that class of [o injectors in which the water receives successive impulses from two or more jets of steam arranged in the same axial line, the velocity of the Water being continually accelerated until velocity requisite to enable the water to en- I 5 ter the boiler has been acquired.

The improvements more particularly refer, first, to the specific construction of the steamadmissiou valves in that class of lifting-injectors in which are employed a central steam-jet 2o which lifts or draws up the water and an annular forcing-jet which, in conjunction with the central lifting-jet, imparts to the water the necessary Velocity to enable it to enter the boiler, the construction being such that the 2 5 valves are raised from their seats in succession,

first the valve governing the admission of steam to the lifter, and then the valve admitting steam to the forcing-nozzle, both valves,

after they have once been opened, remaining 3o open during the operation of the injector; second, to the construction of the support for the fulcrum and guide-bar of the operatinglever; third, to the means for regulating the Water-supply.

These improvements are illustrated by the accompanying drawings, in which- Figure 1 is a longitudinal section of the injector. Fig. 2 is an elevation from the lever end of the injector; Fig. 3, a cross-section on linel 1, Fig. 1; Fig. 4, a cross-section on `line 2 2, Fig. 1; Fig. 5, a cross-section on line 3 3, Fig. 1.

The body of the injector is, for convenience sake, made in two parts bolted together by means of the Iianges A A and four bolts, B. It is provided with the common inlet-passages for steam and water and with a delivery-connection, to which the pipe is attached that leads the fluid to the boiler. It is, furthermore, provided with the usual overliow-pas- (Model.)

sage and a check-valve, C, in the overflowchamber, which prevents thc admission of air after the injector has been started. This checkvalve can be pressed down on its seat by means of the screw-spindle D when it is desired to use the injector as a feed-water heater, as is frequently done in ordinary locomotive practice.

The casing E, which contains the usual check-valve, F, for preventing the backilow of the water from the boiler, is secured to the delivery-nozzle G by means of the swiveljoint H. The condensing-nozzle I, which is provided with one or more overflow-openings,

M, at a short distance from its mouth, is screwed to the delivery-nozzle by means of the arms K, ending in a screw-threaded ring` L. The easing E screws into the body of the injector at M, and by means of the described Construction the delivery and condensing noz- 7o zles can be removed for inspection or cleansing purposes by simply applying a wrench to the squared part N of casing E.

The steam-admission valves, which form the first part of these improvements, are constructed in the following manner: Valve O, which will be called the"niain valve and whichadmitsthesteam into theannularspacea, is 'formed in the shape of ahollow cylinder,pro vided with a circular perforated diaphragm- 8o plate, I). This valve seats on the body of the injector atc, and to it is screwed the lifting steam-nozzle l?, this latter being centrally guided in the forcing steam-nozzle Q, as clearly shown in Fig. 1 of the drawings. 8

ValveR,which willbe called the jet-valve and which admits the steam into nozzle P, is a cylindrical valve seated on main valve O, and is provided with a stem or cylindrical prolongation, S, protruding through the dia- 9o phragm-plate and having nut T screwed on its end. The connection between the spindle U and the jet-valve is established by means of the collar V and lock-nut WV.

It will be observed that neither of the valves is Vfirmly secured to the spindle, but each of them can freely revolve around its horizontal axle, and the connection by means of the locknut YV provides for the necessary allowance for expansion and contraction on the spindle roc I y Y when the injector is charged with steam or cut off from it. Both valves are centrally guided b y four wings, d, dropping from neck a', formed in one with the body of the injector.

Thespindle U is secured tothe sliding sleeve Y, and this latter is guided by the rod Z and secured to the U-sliapedlever A, and this latter to the fiileruin-bar B by the usual mev chanieal appliances-viz., bolt and nut e c, pinf, and lock-init g.

lhegnide-rod Z and fulcrum-bar B are supported by a peculiarly-coiistrueted frictionclaiiip. This consists of the ring shaped part C', slipped over the neck :u of the body1 and provided with neck D', in which rod Z is held by the pin E. The lowei part of ring (.l' ends ina slotted flange, F', which permits the ring C to be drawn tightly around neck of the body by means of the bolt h and nutl; but in order to not interfere with the free oscillation of the fulcruin-bar the nut Z and bolt-head 7i', when tightened, press on flanges F through the intermediary of the bushings in, the fuleium-bar thus oscillating around the bushing m independentlyof the tighteningbolth. The water regulator consists of a common disk valve, G', made solid with the spindle H. The end of this spindle is conical and receives a star wheel orhandle, l", held by .friction on the conical end of the spindle by means of the screwcap il.. The staiwvheel consists of four knobs, K', connected by wings with cach other and with the hub of the wheel, and one of them -is formed with a hole, o. The proper tion between the required lift of valve G and the pitch of the serew-thread on spindle H is so chosen thatjust one turn of the wheel l will entirely open or entirely close the water-passage. The position of the perforated knob on the wheel therefore forms a most simple and reliable indicator for the position of the watervalve. The knobbeing flattened, the recess naturally formed by the hole can be easily felt with the fingers, and by this means the position of the water-valve is readily discernible even at night, which is of great value in locomotive practice.

The operation of the injector is as follows: The lever is moved a short distance in the di rection of the arrow, which opens the jetvalve, the main valve being kept closed by the steanrpressure. The steam thus admitted into the hollow niain valve rushes through the perforatioiis in the diaphragnrplate b into the lifting-nozzle P. This steam, finding a ready outlet through the overflow-space between delivery and condensing nozzle and through per forations '1T inthe condensing-nozzle into the atmosphere, creates the necessary vacuum in the watenchaniber and the water will be drawn into the injector. As soon as water appears at the overliow, the lever is pulled ont to its full stroke, the nut T on the cylindrical prolongation of the jetvalve will strike the diaphragnrplate in the inain valve, and this lat ter valve will be lifted from its seat, allowing the steam to enter the annular space c in the jector.

forcing steaninozzlc Q. The combined effect ot' both steam -jets will be to force the water through the condensing and delivery nozzle with snflicient velocit-y to enter the boilei. The quantity of water to be delivered'in proportion to the steam-pressure in the boiler can be regulated by the waterfvalve G.

The proportions of the different nozzles and their shape will be readily determined by those skilled in the art.

Injectors with a central liftingjet, annular lorcingjet, and successively-opened iet and main valves have been made and used before this; but in all of them the lifting-nozzle has either been attached to the jet-valve and the main valve has been made to slide on the lift.- ing-nozzle, or, when theliftingnozzle has been attached to the main valve, as in these 1in provemcms, the jet-valve was formed in onel with the spindle, no allowance being made for the expansion and contraction of the spin dle. In the former case, as soon as the ]etvalve opened an inevitable leak toolcplaee through the annular spacebetween the liftingnozzle and sliding main valve, the effect of which was to materially lessen and eventually to totally destroy the proper lift of the inln the second case the steam valves could not be kept tight for any reasonable length of time. These defects are successfully overcome by theherein-described construction of the val ves.

The clamp for the support of the guide-rod and f ulcrunrbar as used and made before these improvements consisted of a plain ring slipped over neck w and held down to a shoulder by a 1ocknut, or the ring itself was screwthreaded, screwing over a screwthreaded neck of the injector-body. Both theseconstructions were defective in that it was impossible to keep the clamp,and with it the lever, in the desired position, the lock-init or screw-threaded ring being loosened by the vibration of the pipings or of the locomotive. The herein-de scribed frictioirclanip totally overcomes this difficulty.

ln view of the prior state of the art, what herein is considered new, and desired to be secured by Letters Patent, is-

1. lfn an injector, the combination of a delivery-nozzle, perforated condensingnozzle, and an aiiiinlar forcing steam-nozzle with ajet valve and a hollow cylindrical double-seated niain valve provided with a perforated diaphragm-plate through which a cylindrical prolongation of the jetvalveprotrudes, as and for the purpose set forth.

2. l'n an injector, the combination of a delivery-nozzle, perforated condensing-nozzle, annular forcing steam-nozzle, and central lifting steam-nozzle with a jet-valve and a. hollow cylindrical inain valve provided with a perforated diaphragnrplate through which a cylindrical prolongation of the jet-valve protrudes, as and for the purpose set forth.

3. In an injector, the combination of an annulai forcing steam-nozzle, central lifting IOO steam-nozzle, hollow cylindrical main valve, and diaphragm-plate with a j et-valve provided with a cylindrical stem or prolongation protruding through the diaphragm-plate of the main valve, and with nut T, determining the stroke of the jet-valve, as and for the purpose specified.

4. In an injector, the combination of an annular forcing steam nozzle, central lifting steam-nozzle, hollow cylindrical main valve and perforated diaphragm, jet-valve R, with cylindrical prolongation protruding through' the diaphragm of the main valve,with spindle U, and lock-nut XV, the valves opening successively and none of them having rigid connection with the spindle, as and for the purpose set forth.

5. 'The friction-clamp consisting of ring C', with neck D to receive the guide-rod Z and the slotted flange 1*",presscd together by means of bolt h, bolt-head h, and. nut l, bushings m. interposed between flanges F and nut Z and bolt-head h, the two arms of the fulcrum-bar oscillating around the bushings m without interfering with the tightening of the clamp, as and for the purpose set forth.

6. In an injector, the combination of an annular forcing steam-nozzle, central lifting steam-nozzle, hollow cylindrical main valve and perforated diaphragm, jet-valve R, with cylindrical prolongation protruding through the diaphragm of the main valve, spindle U, and lock-nut W', with the fulcrumvbar and friction-clamp, as specified.

7. In an injector, the combination of an annular forcing steam nozzle, central lifting steam-nozzle, hollow cylindrical main valve and perforated diaphragm, jet-valve R, with cylindrical prolongation protruding through the diaphragm of the main valve, spindle U, and locknut YV, with fulcrum-bar, guide-rod, and friction-clamp, as and for the purpose set forth. l

8. In an injector, the combination of an annular forcing steam nozzle, central lifting steam-nozzle, hollow cylindrical main valve and perforated diaphragi'n, jet-valve R, with cylindrical prolongation protruding through the diaphragm of the main valve, spindle U, lock-nut W, fulcrunrbar, guide-rod, and frictionclamp, with sliding sleeve Y and operating-lever A', all constructed and operating as and for the purpose specified.

9. The star -wheel l', consisting of four knobs, hub, and conncctii'ig-wings, one of the knobs being perforated and serving as an indicatorfor the position ofthe water-valve, as and Afor the purposes set forth.

In testimony whereof we have hereunto set our hands this 8th day of June, 1883.

ROBERT BUDDY. LEOPOLD KAOZANDER.

Witnesses:

CHARLES JUDGE, ADOLPH BARGEBUHR. 

